Automatic measuring device.



J. B. WILLIAMS. AUTOMATIC MBASURING DEVICE.

APPLICATION NLED JUNE 25,1014.

1,1 l 9,380. I Patented Dec. 1, 19.14.

Zjgn] @he E uff/zam OFFME.

JOHN B. WILLIAMS, OF SAN FRANCISCO, CALIFORNIA.

AUTOMATIC MEASRING DEVICE.

Specification of Letters Patent.

Patented Dec. 1, 1914.

Application led June 25, 1914. Serial No. 847,234.

To all whom z't may concern:

Be it known that I, JOHN B. WILLIAMS, a citizen of the United States, residing in the city and county of San Francisco and State of California, have invented new and useful Improvements in Automatic Measuring Devices, of which the following is a specification.

This invention relates to automatic measuring devices, and pertains especially to a new and useful valve, primarily designed as a flush valve for toilets, where it is desired intermittently to effect a` flushing with a predetermined quantity of water. It will be manifest however, that the present device is applicable for use as an automatic liquid measurer for various types of dispensing devices, wherever it is desired to deliver a definite quantity of liquid.

Vhile this invention is. an improvement over-my prior Patent No. 1,062,868, issued to me on May 27, 1913, for reversible flush valve, it has numerous advantages by way of simplicity, durability and practicability. In'its use as a flush valve, for which it has been primarily designed, it is an object not only to make it reversible so that it may be adjusted to connect either with the intake or discharge, according to the conditions of installation, and so adapt it to any make of toilet, but it is a special object to simplify its construction by reducing the number of parts and also reducing the liability of fouling or clogging. 4

Ready accessibility to the various parts of the device is one cardinal feature of the present invention.

There are other objects and advantages which will appear hereinafter.

The invention consists of the parts and the combination and construction of ,parts as hereinafter more fully described and claimed, having reference to the accompanying drawings, in which* iigure 1 is a central vertical section through the'lvalve. Fig. 2 is a similar section taken at right angles to Fig. 1, showing the piston and valves removed. Fig. 3 is a cross section on line 3-3, Fig. 1.

A, represents a casing in which is formed a piston chamber 2 with a port o ening 3 at the bottom of the casing, and in the chamber 2, and another port opening 4 at the side of the casing, and communicating with the lower end of the chamber 2. Ordinarily, the portA 2 is the inlet, and the ,formed in the walls ne withfthe otherof the port 4 the outlet, but the present construe tion and arrangement permits of a reverse action, so that port 4 may be the inlet and port 3 the outlet when desired.

5 is a bushing secured in the lower end of the chamber 2 and forming a seat for the piston valve 6. Piston valve 6 is a non-metallic construction, preferably of fiber or hard rubber made in two sections between which a cup leather 7 is clamped around a valve stem 8. This valve stem 8 may be of metal and consists of a short bolt having a shoulder 9 against which one of the piston sectlonsv may rest; the other fiber piston section 1n the cup leather being held in place on the stern by means of a nut 10 screwing on to the outside of the upper end of the stem 8. The 4abutment 9 forms a seat and spacer for a smaller supplemental piston member 11, consisting of .a fiber washer which lits within the bushing 5. The space around the abutment 9 and between the pis-,

ton 7 and the supplemental piston 11 may be .occupied by a soft rubber washer 12, which forms a contact to the piston 6 with the annular seat on the bushing 5. The upper end of the valve stern 8 is hollowed out and screw-threaded to receive a screw 13, which constitutes an adjustable strike to llmlt the movement of the pistn valve 6, as later described; this screw 13 being set in any lclljtesired position by means of the lock nu The upper end of the casingA is formed with the outwardly projectlng annular flange 15 and an upward continuation 16 thereof to receive and provide a seat for the removable head 17; clamped in place by the screw cap 18. Working through head 17 is a stem 19 carrying at one end a valve 20, and at the other end a push button 21, having a sliding lit through the cap 18 arrangedto operate the device in the manner later to be described. Valve 20 controls a port 22 in the head; which port 22 is adapted to register with one or the other of a pair of ports 23-24, of the casing A; the port 23 communicating with the opening 4 and the port 24 communicating with the port 3. The head 17 has another port 25 which in turn communicates with one or ports 23,-;-24 other than the one with which the ort=22 may be in communication' with. 'Illiat is, if port 22 is in communication with port 23, then port 25 head 17 being securelyy is in communication with port 24:. 'llhis communication however, with ort 25 1s always through a very small bleed port 26 in a lug 27 formed on and projecting downwardly from the head 17; this lug 27 serving among other things, as a dowel pin to insure perfect register and also as a choke .for one or the other of the ports 943-211.

The operation of the inventionis as tollows: Assuming that the apparatus is set up so that port 2 connects with the inlet pipe and port 4 with the outlet pipe. Normally, with valve 2O closed, pressure in chamber 2 and in the inlet' will be equalized and the piston valve 6 will be seated to cut off communication between ports 3 and 4c To open communication between ports 3 and 4 push button 21 is pressed down thereby relieving the pressure Ain chamber 2 by allowing a discharge to take-Place therefrom through ports 2,2-23 into the outlet 4f. rIhis unbalancing of the pressures on the two sides of the piston valvey 6- causes the latter to rise and as the pressure is released almost immediately on the push button 21, valve 20 is automatically closed by the upward movement of piston valve 16; and immediately valve 2O isl closed Water commence's to accumulate in chamber 2 again through the communicating ports 25--26--242 until piston valve 6 falls and-finally closes. The water flow through ports 3-4 continues during the period it takes the piston valve-6 to make its completeupward and downward movement; the upward movement being comparatively short, but the downward movement being timed by the size of the aperture 26, and the lengthfotl stroke of the piston valve 6.' The port 26 being comparatively small with reference to the communication between ports 22-23,

has little eHect in retarding the upward movement of the piston valve 6, which latter jumps almost instantly to the top of the chamber on the operation of the push button. T he length of the stroke of the piston valve 6, and correspondingly the period of time that it takes for its return movement is regulated by the adjustable strike 13; the period of tlow ened according to whether the screw 13 projects a shorter or longer distance above the piston valve 6. This operation insures the prompt workin of the water closet forthe sudden rush o a small quantity of water under pressure is much more e'ective in flushing than a large quantity et water run in at a slower rate from a tank.

lln ushing the bowl ot a toilet it is always desirable gradually to choke oil;1 the inrush- 'desired action which being prolonged or shortf intenso ing water, after the actual flushing of the bowl has been accomplished, so as to leave the bowl part of lthe toilet full owat/er.. rlhis is accomplished in the present instance by providingthe choke member 11. As the piston valve 6 moves down to closed position, the choke member 11 will enter the circular opening of the bushing 5 and gradually decrease the volume of water coming through from the main, thus producing the toilet to refill.

l 1f the direction of iow through ports 4-3 should be reversed at any time, the operation of the valve is controlled by Simply unscrewing cap 18, lifting the head 17 and dropping the lug 27 into the upper end of the port 23; register with port 24. r1`his is what 'is meant when l speak of this valve as being a reversible valve.

.The simplicityy of the present construction is one of its chief advantages. Simply unscrewing cap 8 the head 17 is removed, giving access to the interior.

llt is manifest that various changes may be madein details of construction without departing from the principle of' the invention. t

Having thus l claim and desire ent is 1n combination with a casing having an inlet and an outlet anda valve seat, and also having ports which communicate respectively with the inlet and outlet and have similar upper ends, a head having a pair of ports adapted to communicate with the casing ports andV with the casing interior and constituting an inlet port and an outlet ort for the latter, a lug depending 'from an .secured to the said inlet port, said lug being interchangeably receivable in either of the similar upper ends of the irst mentioned ports and having a small b leed port which latter acts to choke either of the irst named ports when registering therewith and to also at all timesregister with said inlet port of the latter,

described my invention, what to secure by Letters Patwitnesses.

JHN B. WllLLllAll/IS.

Witnesses:

JOHN H. Humane, W., W. Heater.

thus bringing port 22 into` allows the bowl of the 

